William p



(N'oM'oael.)

PUMP VALVE. A No. 270,102. Patented Ja.11.2,11883.

w position in a pump-tube.

UNITED STATES PATENT @Finca WILLIAM P.y OLDEN, OF SPRINGFIELD, ILLINOIS.

PUMP-VALVE.

SPECIFICATION forming part of Letters Ivatent No. 270,102, dated January 2, 1883.

Application filed April 26, 18S-2. (No model.)

To al Z whom it may concern:

Be it known that LYWILLIAM P. OLDEN, of Springfield, in the county of Sangamon and State of Illinois, have invented certain new and' useful Improvements in Pump -Valves; and I do hereby declare the following to be a full, clear, and exact description ofthe invention, such as will enable others skilled in the art to which it pertains to make and use the same.

My invention relates to an improvement in check-valvesfor pumps.

The object of my invention is to'provide valve that can be taken out and -replaced at pleasure, and the means for securing the same `in and removing it from position without disturbing the platform or tearing up the pump and pump-tube to get at the valve; and with these ends in view my invention consists in certain details of construction and combina tions of parts, as will be more fully described, and pointed out in the claims.

In the accompanying drawings,.Figurel is a sectional view, showing my improved valvein Fig. 2 isa plan view of the valve, and Fig. 3 is a perspective view ofthe device for securing the valve and valveseat in and removing it trom position.

A represents the pump; B, the lower section or tube thereof; C, the valve-seat; and D, the valve.

The metallic valve-seat C consists ot' the horizontal portion a., to which the valve is secured, and the screw-threaded shank or body portion b, by means ot' which the valve is secured in position. The size ot' the valve and seat, when held in their proper, positions, is such that they will freely pass through the bore of the pum p without meeting any obstruction, which would stop the same before its position has been reached. The shank or body portion of the seat is about the samediameter as the bore ofthe section in which the valveseat rests, and when this point is reached the downward progress of the seat and valve is stopped. The body or shank of the seat I prefer to make tapering, so as to tighten as it is screwed in the wood. I prefer to have the threads' far apart, and of such form or construction thatthey will not destroy or cut away the section in which they rest, and also'to enable them to cuttheir way and take hold, like a Wood-screw, and be readily secured in position without the necessity of providing for the same beforehand. This construction, howg 5 ever, is intended particularly when the pump-v sectionsare made of wood; but when thepump is so constructed that the seat will `rest on or against a metallic portion thereof the V shank can be provided with threads, andi con-'6o structed as best suited for the purpose. The horizontal portion of the seat-valve proper is formed approximately round, and is provided on its .periphery at. suitable distance apart with two or more notches or open slots, e, in which the ends ofthe engaging-fingers of the rod F rest.

The valve B is an ordinaryA leather or other Suitable iiexible check-valve, weighted or not, as desired, and rigidly secured to the horzon- 7o tal portion ot' the seat by rivets or screws.

The rod F can be made ot" wood or other suitable material, and is provided at'its lower end with as many metallic fingers f as there are open slots e in the valveseat proper. Each 7 5 iingerf is provided with a hook, g, which latter is adapted to engage the side of the projection between two of the open slots e and hold the rod F in position until the valve-seat has been removed from the pump.` The slots e 8o` in the horizontal portion ot' the valve-seat are arranged equidistant apart, and the fingers j' on the rod F are also placed equidistant apart, and are adapted to register with the said slots without the necessity ot adjusting the parts to any one particular relative position. The lower end of the rod F is considera-bly enlarged, and

is of size sufficient to enable the same to .slide or move in the bore of the pump without too much freedom. At suitable distance apart in 9o the periphery ot' this enlarged portion ot' the rod F oblong slots 71. are formed, in which the metallic ingers j' are secured. These slots h are sufficiently deep to enable the outer faces of the ingersf to rest flush with the outer surface ot' periphery of the enlarged portionof the rod, and they are secured therein by screws. The fingers j' are of any suitable length, and

are provided throughout the greater portion of their length with screw-holes i for the passage roo of screws j. These screw-holes are for the purpose of enabling the fingers to be let out in ease anythingv should fall on the valve thatA would prevent the hooks on the ngers from engaging the valve-seat when they are in the position shown in the drawings. The rod F is long enough to reach from the top ofthe pump down tothevalve, and is provided on its upper and outer end with a handle or anysuitable device by which a rotary motion can be im' parted thereto.

When it is desired to remove the valve from position it is simply necessary to remove the handle and bucket and take off the cap-piece of the pump. rIhe rod is then lowered into the pump, and when the valve has been reached by partly turning the rod F the fingers f fall' into the slot e.

It will be noticed that the'hooks g on the fingers fare all on the sam-e side, and when the said fingers have fallen into the said slot' by simply giving the rod a part tur'n in the direction indicated by the arrowv the hooksk engage the projecting portion ot the seat be-V tween the slots and hold the rod and valveseat together. Now, by continuing to turn in the direction of the arrows, the valve is un screwed from its normal position, and when released from the tube is firmly held by the fingersfand can be withdrawn forV repairs.

When it is desired to replace a valve in position in the pump the valve-seat'is secured to the fingers of the rod and lowered into the pump. AWhen the valve has reachedits destination the rod F is turned iu the opposite direction from that last described, which motion secures the seat and valve in position. While securing the valve inposition it is not necessary that the seat be held by the fingers j', asin the former case, for in this instance the weight of the rod is sufficient to hold the parts together, while in the former it is necessary for the hooks of the fingers to engage the seat for the purpose of lifting the same.

The construction ot' parts'above described is more particularly adapted for wooden pumps, but can be modified so as to be kused with anyconstruction of pump Where the checkvalve can be reached in the manner above described. v

Insteadof making the lingers rigid, as above described, they can -be made of springm'etal of' any suitable construction, vadapted to be forced apart, and hold the seat therein with or without the aid of the hooks above described. My invention is simple in construction, is efficient and durablefin use, can be manufactured at a small initial cost, while the Operation necessary to remove or place a valve in position is so simple that skilled labor to accomplish the same is unnecessary.

It is evident that slight changes in the construction and operatio'n'of my improvements @n be resorted to without departing from the spirit of my invention; and here I would have itunderstood that I do not limit'myself to the exact construction of parts shown and described, but consider myself atliberty to make such changes as come within the spirit and scope of my invention.

v Having fully describedniy'inventiom what I claim as new, and desire to secure by Letters Patent, is-

1. A valve-seat provided with a screwthreaded body or shank portion, by means' of which the valve is held in position, and-a horizontal portion, by means ot' which the valve is placed in and removed from position.

2. The combination, with a valve-seat the vthe purpose of holding it in position,and a horizontalportion the periphery of which is slotted, of acheckvalve riveted or otherwise secured. to the horizontal portion of they seat, and means for-engaging the said slotted horizontal portion for the purpose ot' placing the valve-seat in and removing it from position in the pump. I

4. A device for removinga pump-valve consisting of the combination, with a rod, of adjustable fingers secured thereto, substantially as set forth.

ing witnesses.

WILLIAM PARKER OLDEN.

Witnesses:

VALENTINE ALLEN, H. H. ROGERS.

IOO

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